CN107842370A - A kind of replaceable tear knife system of sand-pebble layer - Google Patents
A kind of replaceable tear knife system of sand-pebble layer Download PDFInfo
- Publication number
- CN107842370A CN107842370A CN201711435112.XA CN201711435112A CN107842370A CN 107842370 A CN107842370 A CN 107842370A CN 201711435112 A CN201711435112 A CN 201711435112A CN 107842370 A CN107842370 A CN 107842370A
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- China
- Prior art keywords
- knife
- tearing cutter
- seat
- tearing
- cutter
- Prior art date
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- 239000000956 alloy Substances 0.000 claims description 29
- 229910045601 alloy Inorganic materials 0.000 claims description 29
- 238000009434 installation Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
Abstract
The invention discloses a kind of replaceable tear knife system of sand-pebble layer, solves poor tearing cutter anti-wear performance in the prior art, dismounting inconvenience, service life is low and has a strong impact on the technical problem of construction speed.The present invention includes tearing cutter and installs the fixed seat of tearing cutter, the end face of the cutter head of tearing cutter is in the arc-shaped, wearing layer is provided with cutter head, the tearing cutter handle of a knife of tearing cutter is fixedly installed in fixed seat, fixed seat is fixedly connected on cutter head of shield machine, fixed seat includes the relative positioning seat in left and right, pressed seat, positioning hole is provided with positioning seat, the locating dowel with positioning hole phase clamping is provided with tearing cutter handle of a knife, tearing cutter handle of a knife is arranged between positioning seat and pressed seat and realized by wedge block and fastened, and connecting bottom board is provided with below positioning seat and wedge block.The present invention is rational in infrastructure, production cost is low, excellent in cushion effect, dismounting is convenient, has good popularizing application prospect.
Description
Technical field
The present invention relates to shield machine technical field, particularly relates to a kind of replaceable tear knife system of sand-pebble layer.
Background technology
With the fast development of quickening and the urban construction of Urbanization in China, subway engineering will be increasing, shield
Structure method has been obtained for being widely applied as a kind of advanced engineering method in the construction of subway tunnel.In a wide range of, long range
Shield machine construction in, stratum most of is tunneling boring or partial cut-away sand-pebble layer, and shield machine construction is in large area sand
Constructed in pebble layer.
Shield machine tool wear when sand-pebble layer is constructed is serious, easy breakage, comes off.Occur this kind of feelings in driving
Condition, cutter head of shield machine moment of torsion will be caused to rise, shield machine promotes difficulty, or even can not construct, and is forced tool changing of opening the cabin, and existing
Tearing cutter mounting structure is unreasonable, dismounting is constant, seriously delays the duration.Simultaneously, it is easy to cause excavation face to be caved in, to whole work
The duration of journey, cost bring serious influence.
The content of the invention
For the deficiency in above-mentioned background technology, the present invention proposes a kind of replaceable tear knife system of sand-pebble layer, solution
Tearing cutter anti-wear performance in the prior art of having determined is poor, dismounting is inconvenient, service life is low and has a strong impact on that the technology of construction speed is asked
Topic.
The technical proposal of the invention is realized in this way：A kind of replaceable tear knife system of sand-pebble layer, including tear
Knife and the fixed seat for installing tearing cutter, the end face of the cutter head of tearing cutter is in the arc-shaped, and wearing layer is provided with cutter head, tearing cutter
Tearing cutter handle of a knife is fixedly installed in fixed seat, and fixed seat is fixedly connected on cutter head of shield machine, and it is relative that fixed seat includes left and right
Positioning seat, pressed seat, be provided with positioning hole on positioning seat, the positioning with positioning hole phase clamping be provided with tearing cutter handle of a knife
Post, tearing cutter handle of a knife passes through wedge block（204）It is fixedly installed between positioning seat and pressed seat, below positioning seat and wedge block
It is provided with connecting bottom board.
Further, the positioning hole is circular port, and locating dowel is the cylinder with circular port interference fit.
Further, the connecting bottom board is fixedly connected by bolt assembly with positioning seat, and connecting bottom board is arranged on positioning
The lower end of seat, tearing cutter handle of a knife and wedge block, the upper surface of connecting bottom board and the bottom surface of wedge block are brought into close contact.
Further, one end that the tearing cutter handle of a knife connects with positioning seat is arranged to wedge structure, is set on positioning seat
There is the tapered wall with wedge structure phase clamping.
Further, the left and right sides of the tearing cutter handle of a knife and bottom side are provided with hole for hoist, tearing cutter handle of a knife or so
The hole for hoist of both sides is mutually symmetrical with, and the hole for hoist of tearing cutter handle of a knife bottom side is arranged on the center of tearing cutter handle of a knife bottom side, respectively
Individual hole for hoist is equipped with detachably lifting bolt.
Further, the cutter head end set has several alloy grooves, and central carbide is inlaid with inside alloy groove
Block, the height of central carbide block are less than the height of alloy groove, and the left and right ends of cutter head are inlaid with end face hard alloy blocks.
Further, the alloy groove is cuboid groove, and gap is provided between wearing layer and cuboid groove,
The end face flush of end face hard alloy blocks and tearing cutter handle of a knife.
The present invention sets wearing layer on cutter head, can effectively protect the abrasion that cutter head is subject in tunneling construction, improves
The service life of tearing cutter, the end face of cutter head is arranged to circular arc, the contact area on blade and stratum is small, acts on stratum
On cutting force it is big, drivage efficiency can be effectively improved；Central carbide block is set on cutter head, cutter head can be effectively improved
Impact strength, the end face hard alloy blocks being arranged on cutter head, it can effectively protect the alloy groove on cutter head from high intensity
Impact；Relative positioning seat, pressed seat and the wedge block in left and right is set, can reliably limit tearing cutter in left and right directions, front and rear
The free degree on direction and above-below direction, the setting of connecting bottom board can ensure the firm of wedge block installation, avoid wedge block from taking off
Fall, the reliability of tearing cutter installation has been effectively ensured；Hole for hoist is set to not only facilitate tearing cutter movement shipment, and tearing cutter
The hole for hoist of handle of a knife bottom side can be used for quick-replaceable tearing cutter.The present invention is rational in infrastructure, excellent in cushion effect, dismounting is convenient, tool
There is good popularizing application prospect.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used makees letter in being described below to embodiment
Singly introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for the common skill in this area
For art personnel, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the cross section structure diagram of the present invention；
Fig. 2 is the sectional view in Fig. 1 A-A faces；
Fig. 3 is the structural representation of tearing cutter in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not paid
Embodiment, belong to the scope of protection of the invention.
As Figure 1-3, embodiment 1, a kind of replaceable tear knife system of sand-pebble layer, including tearing cutter 1 and installation
The fixed seat 2 of tearing cutter 1, the end face 102 of the cutter head 101 of tearing cutter 1 is in the arc-shaped, and heap is welded with wearing layer 103 on cutter head 101.
The tearing cutter handle of a knife 104 of tearing cutter 1 is fixedly installed in fixed seat 2, and fixed seat 2 is fixedly welded on cutter head of shield machine 3.It is fixed
Seat 2 includes the relative positioning seat 201 and pressed seat 202 in left and right, and positioning 203, tearing cutter handle of a knife 104 are provided with positioning seat 201
On be provided with locating dowel 105 with the phase clamping of positioning hole 203.
Tearing cutter handle of a knife 104 is arranged between positioning seat 201 and pressed seat 202 and realized by wedge block 204 and fastened, fixed
Position seat 201 and the lower section of wedge block 204 are provided with connecting bottom board 205.Connecting bottom board 205 passes through bolt assembly 206 and positioning seat 201
It is fixedly connected, the block of connecting bottom board 205 is in the lower end of positioning seat 201, tearing cutter handle of a knife 104 and wedge block 204, connecting bottom board
205 upper surface and the lower surface of wedge block 204 are brought into close contact.Wedge block 204 is set to realize to tearing cutter handle of a knife 104 most
The fastening of big degree, the drawbacks of avoiding generic connectivity mode from causing tearing cutter 1 to loosen, the reliable of tearing cutter installation is effectively ensured
Property.
Embodiment 2, a kind of replaceable tear knife system of sand-pebble layer, the positioning hole 203 are circular port, locating dowel
105 be the cylinder with circular port interference fit.Positioning hole 203 is provided in round hole, locating dowel 105 is arranged to and positioning hole
203 coordinate cylinders, be not only simple in structure and be easy to manufacture, and install, dismantle it is convenient, when cylinder is plugged in circular port
After can also be rotatablely installed angle and be modified；Cylinder and circular port interference fit, improve the reliability of the installation of tearing cutter 1.
The other structures of the present embodiment are same as Example 1.
Embodiment 3, a kind of replaceable tear knife system of sand-pebble layer, the tearing cutter handle of a knife 104 and the phase of positioning seat 201
The one end connect is arranged to wedge structure 106, and the tapered wall 207 with the phase clamping of wedge structure 106 is provided with positioning seat 201.If
Put wedge structure 106 and coordinate tapered wall 207, tearing cutter 1 can firmly be fixed, effectively prevent tearing cutter 1 from loosening.
The other structures of the present embodiment are same as Example 2.
Embodiment 4, a kind of replaceable tear knife system of sand-pebble layer, the left and right sides of the tearing cutter handle of a knife 104 and
Bottom side is provided with hole for hoist 107, and the hole for hoist 107 of the left and right sides of tearing cutter handle of a knife 104 is mutually symmetrical with, tearing cutter handle of a knife 104
The hole for hoist 107 of bottom side is arranged on the center of the bottom side of tearing cutter handle of a knife 104, and each hole for hoist 107 is equipped with detachably
Lift bolt.Hole for hoist 107 is set to not only facilitate tearing cutter movement shipment, and the hole for hoist 107 of tearing cutter handle of a knife bottom side
Available for quick-replaceable tearing cutter 1.
The other structures of the present embodiment are same as Example 3.
Embodiment 5, a kind of replaceable tear knife system of sand-pebble layer, the end set of cutter head 101 have three alloys
Groove 108, the internal welding of alloy groove 108 are connected to central carbide block 109, and the height of central carbide block 109 is less than alloy groove
108 height, the left and right ends of cutter head 101 are inlaid with end face hard alloy blocks 110.Central carbide is set on cutter head
Block, the impact strength of cutter head can be effectively improved, the end face hard alloy blocks being arranged on cutter head, effectively can protected on cutter head
Alloy groove from the impact of high intensity, the height of central carbide block is less than the height of alloy groove, is easy to central hard
Alloy block is welded in alloy groove.
The other structures of the present embodiment are same as Example 4.
Embodiment 6, a kind of replaceable tear knife system of sand-pebble layer, the alloy groove 108 is cuboid groove, resistance to
Gap, the end face phase of end face hard alloy blocks 110 and tearing cutter handle of a knife 104 are provided between mill layer 103 and cuboid groove
Concordantly.Alloy groove is arranged to cuboid is simple in construction, and not only processing and fabricating is convenient, and is easy in being welded in alloy groove
Heart hard alloy blocks；Wearing layer and cuboid groove are arranged at intervals, may further ensure that and reliably weld central hard
Metal derby, avoid that wearing layer is caused to damage when welding central hard block.
The other structures of the present embodiment are same as Example 5.
The not detailed part of above example is routine techniques known in those skilled in the art.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (7)
- A kind of 1. replaceable tear knife system of sand-pebble layer, it is characterised in that：Including tearing cutter（1）And installation tearing cutter（1） Fixed seat（2）, tearing cutter（1）Cutter head（101）End face（102）It is in the arc-shaped, cutter head（101）On be provided with wearing layer （103）, tearing cutter（1）Tearing cutter handle of a knife（104）It is fixedly installed on fixed seat（2）It is interior, fixed seat（2）It is fixedly connected on shield Machine knife disk（3）On, fixed seat（2）Including the relative positioning seat in left and right（201）, pressed seat（202）, positioning seat（201）Upper setting There is positioning hole（203）, tearing cutter handle of a knife（104）On be provided with and positioning hole（203）The locating dowel of phase clamping（105）, tearing cutter Handle of a knife（104）Pass through wedge block（204）It is fixedly installed on positioning seat（201）With pressed seat（202）Between, positioning seat（201）With Wedge block（204）Lower section is provided with connecting bottom board（205）.
- 2. the replaceable tear knife system of sand-pebble layer according to claim 1, it is characterised in that：The positioning hole （203）For circular port, locating dowel（105）For the cylinder being interference fitted with circular port.
- 3. the replaceable tear knife system of sand-pebble layer according to claim 1, it is characterised in that：The connecting bottom board （205）Pass through bolt assembly（206）With positioning seat（201）It is fixedly connected, connecting bottom board（205）It is arranged on positioning seat（201）, tear Split knife handle of a knife（104）And wedge block（204）Lower end, connecting bottom board（205）Upper surface and wedge block（204）Bottom surface it is close Fitting.
- 4. the replaceable tear knife system of sand-pebble layer according to claim 1, it is characterised in that：The tearing cutter handle of a knife （104）With positioning seat（201）The one end to connect is arranged to wedge structure（106）, positioning seat（201）On be provided with and wedge structure （106）The tapered wall of phase clamping（207）.
- 5. the replaceable tear knife system of sand-pebble layer according to claim any one of 1-4, it is characterised in that：It is described to tear Split knife handle of a knife（104）The left and right sides and bottom side be provided with hole for hoist（107）, tearing cutter handle of a knife（104）Hang the left and right sides Fill hole（107）It is mutually symmetrical with, tearing cutter handle of a knife（104）The hole for hoist of bottom side（107）It is arranged on tearing cutter handle of a knife（104）Bottom side Center, each hole for hoist（107）It is equipped with detachably lifting bolt.
- 6. the replaceable tear knife system of sand-pebble layer according to claim 5, it is characterised in that：The cutter head（101） End set has several alloy grooves（108）, alloy groove（108）Inside is inlaid with central carbide block（109）, central hard Alloy block（109）Height be less than alloy groove（108）Height, cutter head（101）Left and right ends be inlaid with end face hard alloy Block（110）.
- 7. the replaceable tear knife system of sand-pebble layer according to claim 6, it is characterised in that：The alloy groove （108）For cuboid groove, wearing layer（103）Gap, end face hard alloy blocks are provided between cuboid groove （110）With tearing cutter handle of a knife（104）End face flush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435112.XA CN107842370B (en) | 2017-12-26 | Removable sword device that tears in sandy pebble stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435112.XA CN107842370B (en) | 2017-12-26 | Removable sword device that tears in sandy pebble stratum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107842370A true CN107842370A (en) | 2018-03-27 |
| CN107842370B CN107842370B (en) | 2024-05-10 |
Family
ID=
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590685A (en) * | 2018-04-24 | 2018-09-28 | 中铁工程装备集团有限公司 | A kind of replacing options tearing knife assembly and its tearing cutter |
| CN112253222A (en) * | 2020-08-26 | 2021-01-22 | 煤科集团沈阳研究院有限公司 | Pipe jacking tunneling equipment for roadway rescue |
| CN114517684A (en) * | 2022-04-20 | 2022-05-20 | 北京城建集团有限责任公司 | Boulder stratum earth pressure balance shield wedging cutter mounting structure and design method |
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|---|---|---|---|---|
| CN202467852U (en) * | 2012-03-30 | 2012-10-03 | 常德市中天精密工具有限公司 | Arc-shaped advancing cutter for shield machine |
| CN202788863U (en) * | 2012-06-21 | 2013-03-13 | 洛阳九久技术开发有限公司 | Heavy type tearing cutter used for shield machine |
| CN205297585U (en) * | 2015-11-17 | 2016-06-08 | 中国建筑土木建设有限公司 | Sword is torn to shield structure machine and fixing system thereof |
| CN205654353U (en) * | 2016-04-21 | 2016-10-19 | 中铁工程装备集团有限公司 | Removable shield constructs tears sword girff |
| CN207761656U (en) * | 2017-12-26 | 2018-08-24 | 中铁工程装备集团有限公司 | A kind of replaceable tearing knife system of sand-pebble layer |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202467852U (en) * | 2012-03-30 | 2012-10-03 | 常德市中天精密工具有限公司 | Arc-shaped advancing cutter for shield machine |
| CN202788863U (en) * | 2012-06-21 | 2013-03-13 | 洛阳九久技术开发有限公司 | Heavy type tearing cutter used for shield machine |
| CN205297585U (en) * | 2015-11-17 | 2016-06-08 | 中国建筑土木建设有限公司 | Sword is torn to shield structure machine and fixing system thereof |
| CN205654353U (en) * | 2016-04-21 | 2016-10-19 | 中铁工程装备集团有限公司 | Removable shield constructs tears sword girff |
| CN207761656U (en) * | 2017-12-26 | 2018-08-24 | 中铁工程装备集团有限公司 | A kind of replaceable tearing knife system of sand-pebble layer |
Non-Patent Citations (1)
| Title |
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| 刘华;: "卵砾石地层盾构刀具改造技术研究", 技术与市场, no. 06, pages 95 - 98 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590685A (en) * | 2018-04-24 | 2018-09-28 | 中铁工程装备集团有限公司 | A kind of replacing options tearing knife assembly and its tearing cutter |
| CN108590685B (en) * | 2018-04-24 | 2023-08-22 | 中铁工程装备集团有限公司 | Tearing knife assembly and replacing method of tearing knife thereof |
| CN112253222A (en) * | 2020-08-26 | 2021-01-22 | 煤科集团沈阳研究院有限公司 | Pipe jacking tunneling equipment for roadway rescue |
| CN112253222B (en) * | 2020-08-26 | 2022-05-10 | 中煤科工集团沈阳研究院有限公司 | Pipe jacking tunneling equipment for roadway rescue |
| CN114517684A (en) * | 2022-04-20 | 2022-05-20 | 北京城建集团有限责任公司 | Boulder stratum earth pressure balance shield wedging cutter mounting structure and design method |
| CN114517684B (en) * | 2022-04-20 | 2022-07-15 | 北京城建集团有限责任公司 | Boulder stratum earth pressure balance shield wedging cutter mounting structure and design method |
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